{"product_id":"o-s-speed-b2105-competition-3-5cc-21-off-road-nitro-buggy-engine-dlc-shaft-ceramic-bearing-副本","title":"O.S. Speed B2105 Competition .21 Nitro Engine w\/Pipe Combo","description":"\u003ch1 class=\"productname\"\u003e\u003cspan\u003eO.S. Speed B2105\u003c\/span\u003e\u003c\/h1\u003e\n\u003cp\u003eThe O.S.SPEED B2105 Off-Road Buggy Engine is designed for competitive buggy racing, offering enhanced power and drivability. Manufactured by O.S. Engines, this engine boasts a redesigned cylinder and liner with three ports, delivering greater torque from mid to high-end. The black and silver anodized cooling head ensures efficient heat dissipation, while the DLC-coated crankshaft and revised internal shape optimize both power characteristics and ease of use compared to previous models.\u003c\/p\u003e\n\u003cp\u003eThe O.S.SPEED B2105 also incorporates a double-seal front bearing for improved durability and stability. Inherited from the B2104 crankcase, the engine features ceramic bearings and a specially treated thrust plate to reduce wear and enhance engine life. With a practical RPM range of 4,000 to 42,000, this engine offers smooth and linear power delivery for superior performance in off-road racing environments.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRedesigned cylinder and liner with three ports for improved torque\u003c\/li\u003e\n\u003cli\u003eBlack and silver anodized cooling head for efficient heat dissipation\u003c\/li\u003e\n\u003cli\u003eDLC-coated crankshaft with revised internal shape for better power delivery\u003c\/li\u003e\n\u003cli\u003eDouble-seal front bearing for increased durability and idle stability\u003c\/li\u003e\n\u003cli\u003eCeramic bearing in the crankcase for reliable performance\u003c\/li\u003e\n\u003cli\u003eSpecially treated thrust plate reduces friction wear for longer engine life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e3.49 cc \/ 0.213 cu.in.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.641 in. (16.27mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStroke:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e0.661in. (16.80mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Power:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e2.68 ps \/ 2.64 hp \/ 34,000 r.p.m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePractical RPM Range:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4,000-42,000 r.p.m.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine Weight:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e12.28 oz. (348g)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Application:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e1\/8 Buggy Off-Road\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIncludes:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e(1) B2105 Competition .21 Nitro Engine w\/Pipe Combo\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul id=\"moreinfo\" class=\"tm_productinner tab-pane active\"\u003e\u003c\/ul\u003e","brand":"O.S.Speed","offers":[{"title":"Default Title","offer_id":45589305557132,"sku":null,"price":749.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0707\/2363\/3292\/files\/B2105-1.jpg?v=1767273983","url":"https:\/\/speedbull.net\/products\/o-s-speed-b2105-competition-3-5cc-21-off-road-nitro-buggy-engine-dlc-shaft-ceramic-bearing-%e5%89%af%e6%9c%ac","provider":"SPEEDBULL Rc","version":"1.0","type":"link"}